[18:34] <detrate> anyone here familiar with audio interference caused by the ethernet cable?
[18:35] <detrate> after a system crash, I rebooted to find I have noise interference when I browse the internet...
[18:35] <detrate> _really_ annoying
[18:35] <detrate> I'm using a Audio 2 DJ external USB sound card... so it's a little difficult to separate them from each other
[18:35] <detrate> what gets me, is I didn't have this problem prior. I'm on ubuntu 10.10 with ALSA for sound
[18:36] <holstein> ive heard wierd things when moving a mouse before
[18:36] <holstein> weird*
[18:36] <holstein> usually with just internal cards
[18:37] <holstein> could it be that the USB card and the network adapter share IRQ
[18:37] <detrate> yeah, I'd expect internal more
[18:37] <holstein> cat /proc/interrupts
[18:37] <detrate> can I explicitly define which IRQ they use?
[18:38] <holstein> i think you can hack that somehow
[18:38] <holstein> i usually look in the bios
[18:38] <holstein> and if the settings arent there, i get really bored of trying to fix it ;)
[18:38] <holstein> its never been something i needed to worry with on a production box
[18:39] <holstein> detrate: you dont have the noise when the network is disabled?
[18:39] <detrate> I don't really know what I'm looking at here: http://pastebin.ca/2023714
[18:39] <detrate> correct
[18:39] <detrate> if I unplug the ethernet
[18:39] <detrate> it's clear as day
[18:39] <holstein> this is with JACK running?
[18:40] <detrate> no, alsa
[18:40] <holstein> looks to me like
[18:40] <holstein>  44:     181517     181453     180936     181545   PCI-MSI-edge      eth0
[18:40] <holstein> your network is off by itself
[18:40] <holstein> detrate: i would say, try JACK
[18:40] <holstein> thats the pro level tool we have
[18:41] <holstein> maybe just in the spirit of trouble-shooting
[18:41] <detrate> how is that going to effect my other applications?
[18:41] <detrate> I use this machine for many thing
[18:41] <detrate> s
[18:41] <holstein> well, it wont do anything to try it
[18:41] <holstein> JACK is there
[18:41] <detrate> alright
[18:41] <holstein> you just run it when you want to use it
[18:41] <holstein> and stop it when you dont
[18:41] <detrate> do I need to restart or just logout to get it functional after install?
[18:41] <holstein> depends
[18:42] <holstein> not really a 'this is how to use JACK' type of thing
[18:42] <holstein> depends on the hardware
[18:42] <detrate> ah
[18:42] <holstein> and config
[18:42] <holstein> detrate: why did the system crash?
[18:43] <detrate> because maintainence replaced my refridgerator and apparently left the power off for over 10 minutes because my UPS can last about 10 minutes
[18:43] <holstein> hehe
[18:43] <holstein> well, i would think that is un-related then
[18:43] <holstein> hmmm
[18:43] <holstein> i would probably get a 10.04 live CD
[18:44] <holstein> and see if you can hear it then
[18:44] <holstein> try and get the installed OS out o the equation
[18:44] <holstein> make sure its not hardware related
[18:44] <holstein> and try the JACK thing
[18:44] <detrate> alright
[18:44] <holstein> and go from there
[18:44] <detrate> I can try the card on another computer, I know it's not the headphones / speakers
[18:44] <holstein> AH
[18:45] <holstein> yeah, that would be a good call too
[18:45] <detrate> I already testd them on the internal audio
[18:45] <detrate> and the ethernet is what's causing the interference
[18:45] <detrate> so weird and annoying..
[18:45] <detrate> I just want to listen to nice clean music :(
[18:45] <holstein> no interference with the internal card?
[18:45] <detrate> not at all
[18:45] <holstein> yeah, i would do that first then
[18:45] <holstein> test the USB on another box
[18:45] <detrate> try the card on another computer?
[18:46] <detrate> yeah
[18:46] <detrate> makes sense
[18:46] <holstein> maybe it didnt like being shut down?
[18:46] <detrate> if the card is wrecked, the building manager is getting a piece of my mind
[18:46] <holstein> detrate: no dought
[18:46] <holstein> a piece of mind, and a bill ;)
[19:12] <detrate> yeah, it's clean on the other computer
[19:12] <detrate> so soundcard isn't ruined, that's good
[19:13] <detrate> doesn't help me understand the "software" issue though
[19:13] <detrate> and fwiw, I run the ethernet cable through a surge protector too
[19:13] <detrate> (I tested it direct and still same issue)
[19:21] <holstein> detrate: how about the USB on the computer?
[19:21] <holstein> if you boot a live CD and test it
[19:21] <detrate> tried every slot
[19:21] <detrate> no I haven't done the livecd test yet
[19:21] <detrate> I have to burn one first
[19:21] <holstein> you could take the operating system out of the loop
[19:22] <detrate> not sure I have one handy
[19:22] <holstein> its a stretch anyways
[19:22] <detrate> yeah, I feel like it's either config or bios at this point
[19:22] <detrate> maybe I should check the bios first
[19:22] <detrate> though, I feel like my clock would be reset if something in there changed
[19:22] <holstein> and i cant imagine what setting would caust that noise
[19:23] <holstein> from the bios settings
[19:23] <detrate> ifinternetisonmakenoise=1
[19:23] <detrate> definitely feels like the USB power isn't "clean"
[19:24] <holstein> lol
[19:28] <detrate> omg gross, I restarted and it's ALL static now
[19:28] <holstein> interesting
[19:28] <holstein> i have a laptop like that though
[19:28] <holstein> the USB is borked bad
[19:28] <holstein> i have a little USB maudio transit
[19:29] <detrate> hmm
[19:29] <detrate> I have a usb hub I can try but I don't think that will help anything
[19:29] <holstein> and i screwed around with it for about 20 minutes before i went to another box
[19:29] <holstein> the machine came to me like that
[19:29] <holstein> SO i have no idea what caused it
[19:29] <holstein> its got other little issues here and there too